Omron SYSMAC CJ - REFERENCE MANUAL 08-2008 User Manual

878
High-speed Counter/Pulse Output Instructions Section 3-21
Examples
■ Example 1
When CIO 000100 is ON in the following programming example, PRV2(883)
reads the present pulse frequency at high-speed counter 0, converts that
value to rotation speed (r/min), and outputs the hexadecimal result to D00201
and D00200.
■ Example 2
When CIO 000100 is ON in the following programming example, PRV2(883)
reads the counter PV, converts that value to number of revolutions, and out-
puts the hexadecimal result to D00301 and D00300.
3-21-4 REGISTER COMPARISON TABLE: CTBL(882) (CJ1M-CPU21/22/23
Only)
Purpose CTBL(882) is used to register a comparison table and perform comparisons
for a high-speed counter PV. Either target value or range comparisons are
possible. An interrupt task is executed when a specified condition is met.
This instruction is supported by CJ1M-CPU21/22/23 CPU Units only.
Ladder Symbol
Variations
Applicable Program Areas
PRV2
#0000
#0003
D00200
000100
Converting frequency to rotation speed
Pulses per revolution
PRV2
#0001
#0003
D00300
000100
Converting counter PV to total number of revolutions
Pulses per revolution
CTBL(882)
P
C
TB
P: Port specifier
C: Control data
TB: First comparison table word
Variations Executed Each Cycle for ON Condition CTBL(882)
Executed Once for Upward Differentiation @CTBL(882)
Executed Once for Downward Differentiation Not supported
Immediate Refreshing Specification Not supported
Block program areas Step program areas Subroutines Interrupt tasks
OK OK OK OK

Omron SYSMAC CJ - REFERENCE MANUAL 08-2008 Specifications

General

Brand	Omron
Model	SYSMAC CJ - REFERENCE MANUAL 08-2008
Category	Controller
Language	English